Wheel Speed Sensor Fault

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mikeyerfdog
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Wheel Speed Sensor Fault

Post by mikeyerfdog »

Hi All,

My wifes C4GP Mk2 has the normal chrismass tree of fault. (ABS, ESP etc etc) I hooked it upto Diagbox and it showed rear right speed sensor. Great i thought, changed the sensor and the fault came back.

Thinking about it, it comes up more when it is wet. I guess i am going to have to trace the wiring. Does anyone know where the speed sensor connects into to? Where is the other end of the cable so i can check from point to point? Anyone have the pin numbers and control location.

Due to go to cornwall next week so will be putting 1,000+ miles on the car.

Any help would be great.

Thanks

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GiveMeABreak
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Re: Wheel Speed Sensor Fault

Post by GiveMeABreak »

My advice is to check the actual pins and connectors in the wiring block for the same sensor you replaced - we had a member recently with the same issue and it was a lose pin in the connector IIRC.

mikeyerfdog
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Re: Wheel Speed Sensor Fault

Post by mikeyerfdog »

Hi,
Thats what i plan to do but i dont know where the connector block is. Any ideas?

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GiveMeABreak
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Re: Wheel Speed Sensor Fault

Post by GiveMeABreak »

See this post also:

viewtopic.php?p=690014#p690014

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GiveMeABreak
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Re: Wheel Speed Sensor Fault

Post by GiveMeABreak »

Here:
C4GP ABS Connector.PNG

mikeyerfdog
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Re: Wheel Speed Sensor Fault

Post by mikeyerfdog »

Thanks, I checked that one. I want to check all the wiring right back to the controller. Where is that contrller so i can check that end's multiplug?

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GiveMeABreak
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Re: Wheel Speed Sensor Fault

Post by GiveMeABreak »

It will go back with the others to the ESP / ABS ECU which is at the rear of the engine bay near the left front wing (standing in front of the bonnet).

mikeyerfdog
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Joined: 15 Jul 2021, 10:23

Re: Wheel Speed Sensor Fault

Post by mikeyerfdog »

Thanks,
I think you might me right tho. I have the 2pin plug a wiggle and it cleard last night. Will get the wheel off this weekend and confirm for sure.

Thanks for your input tho...

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GiveMeABreak
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Re: Wheel Speed Sensor Fault

Post by GiveMeABreak »

No worries - best of luck with it. Once you check the Pin, give it a clean with some Servisol or other electrical contact cleaner too.